Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided in four parts:
  1. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provide some useful information on the computer.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
  3. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to 1200 seconds. After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  4. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.

General information on the benchmark

Namenormalized-opb/web/uclid_pb_benchmarks/normalized-dlx1c.rwmem1.ucl.opb
MD5SUMa87f19e00caac3c4982ef2b4adfd05fa
Bench Categoryno optimization function (SAT)
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 33
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 126
Number of bits of the biggest sum of numbers7
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.26665
Number of variables7578
Total number of constraints21401
Number of constraints which are clauses20501
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints900
Minimum length of a constraint1
Maximum length of a constraint11

Trace number 29267

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc28 THE 2005-05-25 06:14:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=20699 boxname=wulflinc28 idbench=289 idsolver=14 numberseed=0
MD5SUM SOLVER: d29da23ec752be69e0579424c0f0767e  /oldhome/oroussel/solvers/sat4jPseudoBis.jar
MD5SUM BENCH:  a87f19e00caac3c4982ef2b4adfd05fa  /oldhome/oroussel/tmp/wulflinc28/normalized-dlx1c.rwmem1.ucl.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudoBis.jar /oldhome/oroussel/tmp/wulflinc28/normalized-dlx1c.rwmem1.ucl.opb
IDLAUNCH: 20699
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        730160 kB
Buffers:         20552 kB
Cached:         262568 kB
SwapCached:       1052 kB
Active:          32572 kB
Inactive:       253044 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        729908 kB
SwapTotal:     2097640 kB
SwapFree:      2096168 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5464 kB
Slab:            13012 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-25 06:15:53 (client local time) WITH STATUS 20 IN 95.0425 SECONDS
stats: 20699 7 95.0425 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c SAT4J: a SATisfiability library for Java (c) 2004-2005 Daniel Le Berre
c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
c version Special PB05 Second trial
c --- Begin Solver configuration ---
c org.sat4j.minisat.uip.FirstUIP@1e4cbc4
c org.sat4j.minisat.constraints.PBMinDataStructure@1fdc96c
c org.sat4j.minisat.learning.MiniSATLearning@b2fd8f
c conflictBoundIncFactor=1.5 learntBoundIncFactor=1.1 initLearntBoundConstraintFactor=0.5 initConflictBound=100 
c 
c --- End Solver configuration ---
c solving /oldhome/oroussel/tmp/wulflinc28/normalized-dlx1c.rwmem1.ucl.opb
c reading problem ... done. Time 25.251 ms.
c #vars     7578
c #constraints  21401
c starts	: 5
c conflicts	: 1175
c decisions	: 6508
c propagations	: 621111
c inspects	: 1923094
c learned literals	: 2
c learned binary clauses	: 65
c learned ternary clauses	: 30
c learned clauses	: 1172
c root simplifications	: 18
s UNSATISFIABLE
c Total CPU time (ms) : 82.475
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 1.00 1.00 1.00 2/54 2864
Raw data (stat): 2864 (runsolver) R 2863 24821 24820 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 836642761 1052672 99 4294967295 134512640 135381576 3221224400 3221219620 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0002 s]
Raw data (loadavg): 1.00 1.00 1.00 2/63 2873
Raw data (stat): 2864 (java) R 2863 24821 24820 0 -1 0 18039 0 1 0 802 38 0 0 25 0 10 0 836642761 854319104 20930 4294967295 134512640 134569956 3221224368 3221214484 1080019614 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 208574 20930 13086 16 0 208558 0
vsize: 834296
[startup+20.0015 s]
Raw data (loadavg): 1.00 1.00 1.00 2/63 2873
Raw data (stat): 2864 (java) R 2863 24821 24820 0 -1 0 18039 0 1 0 1647 38 0 0 25 0 10 0 836642761 854188032 22062 4294967295 134512640 134569956 3221224368 3221214424 1076461336 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 208542 22062 13086 16 0 208526 0
vsize: 834168
[startup+30.0016 s]
Raw data (loadavg): 1.00 1.00 1.00 3/64 2874
Raw data (stat): 2864 (java) R 2863 24821 24820 0 -1 0 18101 0 1 0 2462 38 0 0 25 0 11 0 836642761 859336704 23638 4294967295 134512640 134569956 3221224368 3221214764 1130906658 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 209799 23638 13086 16 0 209783 0
vsize: 839196
[startup+40.0022 s]
Raw data (loadavg): 1.07 1.02 1.00 2/64 2874
Raw data (stat): 2864 (java) R 2863 24821 24820 0 -1 0 18102 0 1 0 3338 38 0 0 25 0 11 0 836642761 859688960 24523 4294967295 134512640 134569956 3221224368 3221214688 1131229333 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 209885 24523 13086 16 0 209869 0
vsize: 839540
[startup+50.0034 s]
Raw data (loadavg): 1.06 1.01 1.00 2/64 2874
Raw data (stat): 2864 (java) R 2863 24821 24820 0 -1 0 18102 0 1 0 4277 39 0 0 25 0 11 0 836642761 859688960 24590 4294967295 134512640 134569956 3221224368 3221214544 1131274575 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 209885 24590 13086 16 0 209869 0
vsize: 839540
[startup+60.0027 s]
Raw data (loadavg): 1.05 1.01 1.00 2/64 2874
Raw data (stat): 2864 (java) S 2863 24821 24820 0 -1 0 18102 0 1 0 5216 39 0 0 25 0 11 0 836642761 859688960 24729 4294967295 134512640 134569956 3221224368 3221213432 1073943035 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 209885 24729 13086 16 0 209869 0
vsize: 839540
[startup+70.0032 s]
Raw data (loadavg): 1.04 1.01 1.00 2/64 2874
Raw data (stat): 2864 (java) S 2863 24821 24820 0 -1 0 18102 0 1 0 6155 39 0 0 25 0 11 0 836642761 859688960 24814 4294967295 134512640 134569956 3221224368 3221213328 1073952481 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 209885 24814 13086 16 0 209869 0
vsize: 839540
[startup+80.0034 s]
Raw data (loadavg): 1.04 1.01 1.00 2/64 2874
Raw data (stat): 2864 (java) R 2863 24821 24820 0 -1 0 18102 0 1 0 7117 39 0 0 25 0 11 0 836642761 859688960 25096 4294967295 134512640 134569956 3221224368 3221214624 1131274011 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 209885 25096 13086 16 0 209869 0
vsize: 839540
[startup+83.4671 s]
Raw data (loadavg): 1.03 1.01 1.00 1/53 2875
Raw data (stat): 2864 (java) R 2863 24821 24820 0 -1 0 18102 0 1 0 7117 39 0 0 25 0 11 0 836642761 859688960 25096 4294967295 134512640 134569956 3221224368 3221214624 1131274011 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 209885 25096 13086 16 0 209869 0
vsize: 0

Child status: 20
Real time (s): 83.4668
CPU time (s): 95.0425
CPU user time (s): 94.2967
CPU system time (s): 0.745886
CPU usage (%): 113.869
Max. virtual memory (Kb): 839540
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####